use ::libc;
extern "C" {
    pub type event_base;
    pub type evbuffer;
    pub type bufferevent_ops;
    pub type args;
    pub type tmuxpeer;
    pub type hyperlinks;
    pub type screen_write_cline;
    pub type screen_sel;
    pub type screen_titles;
    pub type options;
    pub type format_tree;
    pub type input_ctx;
    pub type cmds;
    pub type tty_key;
    pub type tty_code;
    pub type format_job_tree;
    pub type control_state;
    pub type cmdq_list;
    pub type options_array_item;
    pub type options_entry;
    fn fnmatch(
        __pattern: *const libc::c_char,
        __name: *const libc::c_char,
        __flags: libc::c_int,
    ) -> libc::c_int;
    fn free(_: *mut libc::c_void);
    fn setenv(
        __name: *const libc::c_char,
        __value: *const libc::c_char,
        __replace: libc::c_int,
    ) -> libc::c_int;
    fn strcmp(_: *const libc::c_char, _: *const libc::c_char) -> libc::c_int;
    fn strchr(_: *const libc::c_char, _: libc::c_int) -> *mut libc::c_char;
    fn strcspn(_: *const libc::c_char, _: *const libc::c_char) -> libc::c_ulong;
    static mut environ: *mut *mut libc::c_char;
    fn getpid() -> __pid_t;
    fn vasprintf(
        __ptr: *mut *mut libc::c_char,
        __f: *const libc::c_char,
        __arg: ::core::ffi::VaList,
    ) -> libc::c_int;
    fn xmalloc(_: size_t) -> *mut libc::c_void;
    fn xcalloc(_: size_t, _: size_t) -> *mut libc::c_void;
    fn xstrdup(_: *const libc::c_char) -> *mut libc::c_char;
    fn xvasprintf(
        _: *mut *mut libc::c_char,
        _: *const libc::c_char,
        _: ::core::ffi::VaList,
    ) -> libc::c_int;
    static mut global_options: *mut options;
    static mut global_environ: *mut environ;
    static mut socket_path: *const libc::c_char;
    fn getversion() -> *const libc::c_char;
    fn options_get(_: *mut options, _: *const libc::c_char) -> *mut options_entry;
    fn options_array_first(_: *mut options_entry) -> *mut options_array_item;
    fn options_array_next(_: *mut options_array_item) -> *mut options_array_item;
    fn options_array_item_value(_: *mut options_array_item) -> *mut options_value;
    fn options_get_string(_: *mut options, _: *const libc::c_char) -> *const libc::c_char;
    fn log_debug(_: *const libc::c_char, _: ...);
}
pub type __builtin_va_list = [__va_list_tag; 1];
#[derive(Copy, Clone)]
#[repr(C)]
pub struct __va_list_tag {
    pub gp_offset: libc::c_uint,
    pub fp_offset: libc::c_uint,
    pub overflow_arg_area: *mut libc::c_void,
    pub reg_save_area: *mut libc::c_void,
}
pub type __u_char = libc::c_uchar;
pub type __u_short = libc::c_ushort;
pub type __u_int = libc::c_uint;
pub type __uint8_t = libc::c_uchar;
pub type __uint64_t = libc::c_ulong;
pub type __pid_t = libc::c_int;
pub type __time_t = libc::c_long;
pub type __suseconds_t = libc::c_long;
pub type u_char = __u_char;
pub type u_short = __u_short;
pub type u_int = __u_int;
pub type pid_t = __pid_t;
pub type time_t = __time_t;
pub type size_t = libc::c_ulong;
#[derive(Copy, Clone)]
#[repr(C)]
pub struct timeval {
    pub tv_sec: __time_t,
    pub tv_usec: __suseconds_t,
}
pub type va_list = __builtin_va_list;
pub type cc_t = libc::c_uchar;
pub type speed_t = libc::c_uint;
pub type tcflag_t = libc::c_uint;
#[derive(Copy, Clone)]
#[repr(C)]
pub struct termios {
    pub c_iflag: tcflag_t,
    pub c_oflag: tcflag_t,
    pub c_cflag: tcflag_t,
    pub c_lflag: tcflag_t,
    pub c_line: cc_t,
    pub c_cc: [cc_t; 32],
    pub c_ispeed: speed_t,
    pub c_ospeed: speed_t,
}
pub type uint8_t = __uint8_t;
pub type uint64_t = __uint64_t;
#[derive(Copy, Clone)]
#[repr(C)]
pub struct event {
    pub ev_evcallback: event_callback,
    pub ev_timeout_pos: C2RustUnnamed_4,
    pub ev_fd: libc::c_int,
    pub ev_base: *mut event_base,
    pub ev_: C2RustUnnamed,
    pub ev_events: libc::c_short,
    pub ev_res: libc::c_short,
    pub ev_timeout: timeval,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub union C2RustUnnamed {
    pub ev_io: C2RustUnnamed_2,
    pub ev_signal: C2RustUnnamed_0,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct C2RustUnnamed_0 {
    pub ev_signal_next: C2RustUnnamed_1,
    pub ev_ncalls: libc::c_short,
    pub ev_pncalls: *mut libc::c_short,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct C2RustUnnamed_1 {
    pub le_next: *mut event,
    pub le_prev: *mut *mut event,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct C2RustUnnamed_2 {
    pub ev_io_next: C2RustUnnamed_3,
    pub ev_timeout: timeval,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct C2RustUnnamed_3 {
    pub le_next: *mut event,
    pub le_prev: *mut *mut event,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub union C2RustUnnamed_4 {
    pub ev_next_with_common_timeout: C2RustUnnamed_5,
    pub min_heap_idx: libc::c_int,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct C2RustUnnamed_5 {
    pub tqe_next: *mut event,
    pub tqe_prev: *mut *mut event,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct event_callback {
    pub evcb_active_next: C2RustUnnamed_7,
    pub evcb_flags: libc::c_short,
    pub evcb_pri: uint8_t,
    pub evcb_closure: uint8_t,
    pub evcb_cb_union: C2RustUnnamed_6,
    pub evcb_arg: *mut libc::c_void,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub union C2RustUnnamed_6 {
    pub evcb_callback:
        Option<unsafe extern "C" fn(libc::c_int, libc::c_short, *mut libc::c_void) -> ()>,
    pub evcb_selfcb: Option<unsafe extern "C" fn(*mut event_callback, *mut libc::c_void) -> ()>,
    pub evcb_evfinalize: Option<unsafe extern "C" fn(*mut event, *mut libc::c_void) -> ()>,
    pub evcb_cbfinalize: Option<unsafe extern "C" fn(*mut event_callback, *mut libc::c_void) -> ()>,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct C2RustUnnamed_7 {
    pub tqe_next: *mut event_callback,
    pub tqe_prev: *mut *mut event_callback,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct bufferevent {
    pub ev_base: *mut event_base,
    pub be_ops: *const bufferevent_ops,
    pub ev_read: event,
    pub ev_write: event,
    pub input: *mut evbuffer,
    pub output: *mut evbuffer,
    pub wm_read: event_watermark,
    pub wm_write: event_watermark,
    pub readcb: bufferevent_data_cb,
    pub writecb: bufferevent_data_cb,
    pub errorcb: bufferevent_event_cb,
    pub cbarg: *mut libc::c_void,
    pub timeout_read: timeval,
    pub timeout_write: timeval,
    pub enabled: libc::c_short,
}
pub type bufferevent_event_cb =
    Option<unsafe extern "C" fn(*mut bufferevent, libc::c_short, *mut libc::c_void) -> ()>;
pub type bufferevent_data_cb =
    Option<unsafe extern "C" fn(*mut bufferevent, *mut libc::c_void) -> ()>;
#[derive(Copy, Clone)]
#[repr(C)]
pub struct event_watermark {
    pub low: size_t,
    pub high: size_t,
}
pub type bitstr_t = libc::c_uchar;
pub type msgtype = libc::c_uint;
pub const MSG_READ_CANCEL: msgtype = 307;
pub const MSG_WRITE_CLOSE: msgtype = 306;
pub const MSG_WRITE_READY: msgtype = 305;
pub const MSG_WRITE: msgtype = 304;
pub const MSG_WRITE_OPEN: msgtype = 303;
pub const MSG_READ_DONE: msgtype = 302;
pub const MSG_READ: msgtype = 301;
pub const MSG_READ_OPEN: msgtype = 300;
pub const MSG_FLAGS: msgtype = 218;
pub const MSG_EXEC: msgtype = 217;
pub const MSG_WAKEUP: msgtype = 216;
pub const MSG_UNLOCK: msgtype = 215;
pub const MSG_SUSPEND: msgtype = 214;
pub const MSG_OLDSTDOUT: msgtype = 213;
pub const MSG_OLDSTDIN: msgtype = 212;
pub const MSG_OLDSTDERR: msgtype = 211;
pub const MSG_SHUTDOWN: msgtype = 210;
pub const MSG_SHELL: msgtype = 209;
pub const MSG_RESIZE: msgtype = 208;
pub const MSG_READY: msgtype = 207;
pub const MSG_LOCK: msgtype = 206;
pub const MSG_EXITING: msgtype = 205;
pub const MSG_EXITED: msgtype = 204;
pub const MSG_EXIT: msgtype = 203;
pub const MSG_DETACHKILL: msgtype = 202;
pub const MSG_DETACH: msgtype = 201;
pub const MSG_COMMAND: msgtype = 200;
pub const MSG_IDENTIFY_TERMINFO: msgtype = 112;
pub const MSG_IDENTIFY_LONGFLAGS: msgtype = 111;
pub const MSG_IDENTIFY_STDOUT: msgtype = 110;
pub const MSG_IDENTIFY_FEATURES: msgtype = 109;
pub const MSG_IDENTIFY_CWD: msgtype = 108;
pub const MSG_IDENTIFY_CLIENTPID: msgtype = 107;
pub const MSG_IDENTIFY_DONE: msgtype = 106;
pub const MSG_IDENTIFY_ENVIRON: msgtype = 105;
pub const MSG_IDENTIFY_STDIN: msgtype = 104;
pub const MSG_IDENTIFY_OLDCWD: msgtype = 103;
pub const MSG_IDENTIFY_TTYNAME: msgtype = 102;
pub const MSG_IDENTIFY_TERM: msgtype = 101;
pub const MSG_IDENTIFY_FLAGS: msgtype = 100;
pub const MSG_VERSION: msgtype = 12;
#[derive(Copy, Clone)]
#[repr(C)]
pub struct client {
    pub name: *const libc::c_char,
    pub peer: *mut tmuxpeer,
    pub queue: *mut cmdq_list,
    pub windows: client_windows,
    pub control_state: *mut control_state,
    pub pause_age: u_int,
    pub pid: pid_t,
    pub fd: libc::c_int,
    pub out_fd: libc::c_int,
    pub event: event,
    pub retval: libc::c_int,
    pub creation_time: timeval,
    pub activity_time: timeval,
    pub last_activity_time: timeval,
    pub environ: *mut environ,
    pub jobs: *mut format_job_tree,
    pub title: *mut libc::c_char,
    pub path: *mut libc::c_char,
    pub cwd: *const libc::c_char,
    pub term_name: *mut libc::c_char,
    pub term_features: libc::c_int,
    pub term_type: *mut libc::c_char,
    pub term_caps: *mut *mut libc::c_char,
    pub term_ncaps: u_int,
    pub ttyname: *mut libc::c_char,
    pub tty: tty,
    pub written: size_t,
    pub discarded: size_t,
    pub redraw: size_t,
    pub repeat_timer: event,
    pub click_timer: event,
    pub click_button: u_int,
    pub click_event: mouse_event,
    pub status: status_line,
    pub flags: uint64_t,
    pub exit_type: C2RustUnnamed_31,
    pub exit_msgtype: msgtype,
    pub exit_session: *mut libc::c_char,
    pub exit_message: *mut libc::c_char,
    pub keytable: *mut key_table,
    pub last_key: key_code,
    pub redraw_panes: uint64_t,
    pub redraw_scrollbars: uint64_t,
    pub message_ignore_keys: libc::c_int,
    pub message_ignore_styles: libc::c_int,
    pub message_string: *mut libc::c_char,
    pub message_timer: event,
    pub prompt_string: *mut libc::c_char,
    pub prompt_buffer: *mut utf8_data,
    pub prompt_last: *mut libc::c_char,
    pub prompt_index: size_t,
    pub prompt_inputcb: prompt_input_cb,
    pub prompt_freecb: prompt_free_cb,
    pub prompt_data: *mut libc::c_void,
    pub prompt_hindex: [u_int; 4],
    pub prompt_mode: C2RustUnnamed_28,
    pub prompt_saved: *mut utf8_data,
    pub prompt_flags: libc::c_int,
    pub prompt_type: prompt_type,
    pub prompt_cursor: libc::c_int,
    pub session: *mut session,
    pub last_session: *mut session,
    pub references: libc::c_int,
    pub pan_window: *mut libc::c_void,
    pub pan_ox: u_int,
    pub pan_oy: u_int,
    pub overlay_check: overlay_check_cb,
    pub overlay_mode: overlay_mode_cb,
    pub overlay_draw: overlay_draw_cb,
    pub overlay_key: overlay_key_cb,
    pub overlay_free: overlay_free_cb,
    pub overlay_resize: overlay_resize_cb,
    pub overlay_data: *mut libc::c_void,
    pub overlay_timer: event,
    pub files: client_files,
    pub clipboard_panes: *mut u_int,
    pub clipboard_npanes: u_int,
    pub entry: C2RustUnnamed_8,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct C2RustUnnamed_8 {
    pub tqe_next: *mut client,
    pub tqe_prev: *mut *mut client,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct client_files {
    pub rbh_root: *mut client_file,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct client_file {
    pub c: *mut client,
    pub peer: *mut tmuxpeer,
    pub tree: *mut client_files,
    pub references: libc::c_int,
    pub stream: libc::c_int,
    pub path: *mut libc::c_char,
    pub buffer: *mut evbuffer,
    pub event: *mut bufferevent,
    pub fd: libc::c_int,
    pub error: libc::c_int,
    pub closed: libc::c_int,
    pub cb: client_file_cb,
    pub data: *mut libc::c_void,
    pub entry: C2RustUnnamed_9,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct C2RustUnnamed_9 {
    pub rbe_left: *mut client_file,
    pub rbe_right: *mut client_file,
    pub rbe_parent: *mut client_file,
    pub rbe_color: libc::c_int,
}
pub type client_file_cb = Option<
    unsafe extern "C" fn(
        *mut client,
        *const libc::c_char,
        libc::c_int,
        libc::c_int,
        *mut evbuffer,
        *mut libc::c_void,
    ) -> (),
>;
pub type overlay_resize_cb = Option<unsafe extern "C" fn(*mut client, *mut libc::c_void) -> ()>;
pub type overlay_free_cb = Option<unsafe extern "C" fn(*mut client, *mut libc::c_void) -> ()>;
pub type overlay_key_cb =
    Option<unsafe extern "C" fn(*mut client, *mut libc::c_void, *mut key_event) -> libc::c_int>;
#[derive(Copy, Clone)]
#[repr(C)]
pub struct key_event {
    pub key: key_code,
    pub m: mouse_event,
    pub buf: *mut libc::c_char,
    pub len: size_t,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct mouse_event {
    pub valid: libc::c_int,
    pub ignore: libc::c_int,
    pub key: key_code,
    pub statusat: libc::c_int,
    pub statuslines: u_int,
    pub x: u_int,
    pub y: u_int,
    pub b: u_int,
    pub lx: u_int,
    pub ly: u_int,
    pub lb: u_int,
    pub ox: u_int,
    pub oy: u_int,
    pub s: libc::c_int,
    pub w: libc::c_int,
    pub wp: libc::c_int,
    pub sgr_type: u_int,
    pub sgr_b: u_int,
}
pub type key_code = libc::c_ulonglong;
pub type overlay_draw_cb =
    Option<unsafe extern "C" fn(*mut client, *mut libc::c_void, *mut screen_redraw_ctx) -> ()>;
#[derive(Copy, Clone)]
#[repr(C)]
pub struct screen_redraw_ctx {
    pub c: *mut client,
    pub statuslines: u_int,
    pub statustop: libc::c_int,
    pub pane_status: libc::c_int,
    pub pane_lines: pane_lines,
    pub pane_scrollbars: libc::c_int,
    pub pane_scrollbars_pos: libc::c_int,
    pub no_pane_gc: grid_cell,
    pub no_pane_gc_set: libc::c_int,
    pub sx: u_int,
    pub sy: u_int,
    pub ox: u_int,
    pub oy: u_int,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct grid_cell {
    pub data: utf8_data,
    pub attr: u_short,
    pub flags: u_char,
    pub fg: libc::c_int,
    pub bg: libc::c_int,
    pub us: libc::c_int,
    pub link: u_int,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct utf8_data {
    pub data: [u_char; 21],
    pub have: u_char,
    pub size: u_char,
    pub width: u_char,
}
pub type pane_lines = libc::c_uint;
pub const PANE_LINES_NUMBER: pane_lines = 4;
pub const PANE_LINES_SIMPLE: pane_lines = 3;
pub const PANE_LINES_HEAVY: pane_lines = 2;
pub const PANE_LINES_DOUBLE: pane_lines = 1;
pub const PANE_LINES_SINGLE: pane_lines = 0;
pub type overlay_mode_cb = Option<
    unsafe extern "C" fn(*mut client, *mut libc::c_void, *mut u_int, *mut u_int) -> *mut screen,
>;
#[derive(Copy, Clone)]
#[repr(C)]
pub struct screen {
    pub title: *mut libc::c_char,
    pub path: *mut libc::c_char,
    pub titles: *mut screen_titles,
    pub grid: *mut grid,
    pub cx: u_int,
    pub cy: u_int,
    pub cstyle: screen_cursor_style,
    pub default_cstyle: screen_cursor_style,
    pub ccolour: libc::c_int,
    pub default_ccolour: libc::c_int,
    pub rupper: u_int,
    pub rlower: u_int,
    pub mode: libc::c_int,
    pub default_mode: libc::c_int,
    pub saved_cx: u_int,
    pub saved_cy: u_int,
    pub saved_grid: *mut grid,
    pub saved_cell: grid_cell,
    pub saved_flags: libc::c_int,
    pub tabs: *mut bitstr_t,
    pub sel: *mut screen_sel,
    pub write_list: *mut screen_write_cline,
    pub hyperlinks: *mut hyperlinks,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct grid {
    pub flags: libc::c_int,
    pub sx: u_int,
    pub sy: u_int,
    pub hscrolled: u_int,
    pub hsize: u_int,
    pub hlimit: u_int,
    pub linedata: *mut grid_line,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct grid_line {
    pub celldata: *mut grid_cell_entry,
    pub cellused: u_int,
    pub cellsize: u_int,
    pub extddata: *mut grid_extd_entry,
    pub extdsize: u_int,
    pub flags: libc::c_int,
    pub time: time_t,
}
#[derive(Copy, Clone)]
#[repr(C, packed)]
pub struct grid_extd_entry {
    pub data: utf8_char,
    pub attr: u_short,
    pub flags: u_char,
    pub fg: libc::c_int,
    pub bg: libc::c_int,
    pub us: libc::c_int,
    pub link: u_int,
}
pub type utf8_char = u_int;
#[derive(Copy, Clone)]
#[repr(C, packed)]
pub struct grid_cell_entry {
    pub c2rust_unnamed: C2RustUnnamed_10,
    pub flags: u_char,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub union C2RustUnnamed_10 {
    pub offset: u_int,
    pub data: C2RustUnnamed_11,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct C2RustUnnamed_11 {
    pub attr: u_char,
    pub fg: u_char,
    pub bg: u_char,
    pub data: u_char,
}
pub type screen_cursor_style = libc::c_uint;
pub const SCREEN_CURSOR_BAR: screen_cursor_style = 3;
pub const SCREEN_CURSOR_UNDERLINE: screen_cursor_style = 2;
pub const SCREEN_CURSOR_BLOCK: screen_cursor_style = 1;
pub const SCREEN_CURSOR_DEFAULT: screen_cursor_style = 0;
pub type overlay_check_cb = Option<
    unsafe extern "C" fn(
        *mut client,
        *mut libc::c_void,
        u_int,
        u_int,
        u_int,
        *mut overlay_ranges,
    ) -> (),
>;
#[derive(Copy, Clone)]
#[repr(C)]
pub struct overlay_ranges {
    pub px: [u_int; 3],
    pub nx: [u_int; 3],
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct session {
    pub id: u_int,
    pub name: *mut libc::c_char,
    pub cwd: *const libc::c_char,
    pub creation_time: timeval,
    pub last_attached_time: timeval,
    pub activity_time: timeval,
    pub last_activity_time: timeval,
    pub lock_timer: event,
    pub curw: *mut winlink,
    pub lastw: winlink_stack,
    pub windows: winlinks,
    pub statusat: libc::c_int,
    pub statuslines: u_int,
    pub options: *mut options,
    pub flags: libc::c_int,
    pub attached: u_int,
    pub tio: *mut termios,
    pub environ: *mut environ,
    pub references: libc::c_int,
    pub gentry: C2RustUnnamed_13,
    pub entry: C2RustUnnamed_12,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct C2RustUnnamed_12 {
    pub rbe_left: *mut session,
    pub rbe_right: *mut session,
    pub rbe_parent: *mut session,
    pub rbe_color: libc::c_int,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct C2RustUnnamed_13 {
    pub tqe_next: *mut session,
    pub tqe_prev: *mut *mut session,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct environ {
    pub rbh_root: *mut environ_entry,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct environ_entry {
    pub name: *mut libc::c_char,
    pub value: *mut libc::c_char,
    pub flags: libc::c_int,
    pub entry: C2RustUnnamed_14,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct C2RustUnnamed_14 {
    pub rbe_left: *mut environ_entry,
    pub rbe_right: *mut environ_entry,
    pub rbe_parent: *mut environ_entry,
    pub rbe_color: libc::c_int,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct winlinks {
    pub rbh_root: *mut winlink,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct winlink {
    pub idx: libc::c_int,
    pub session: *mut session,
    pub window: *mut window,
    pub flags: libc::c_int,
    pub entry: C2RustUnnamed_17,
    pub wentry: C2RustUnnamed_16,
    pub sentry: C2RustUnnamed_15,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct C2RustUnnamed_15 {
    pub tqe_next: *mut winlink,
    pub tqe_prev: *mut *mut winlink,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct C2RustUnnamed_16 {
    pub tqe_next: *mut winlink,
    pub tqe_prev: *mut *mut winlink,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct C2RustUnnamed_17 {
    pub rbe_left: *mut winlink,
    pub rbe_right: *mut winlink,
    pub rbe_parent: *mut winlink,
    pub rbe_color: libc::c_int,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct window {
    pub id: u_int,
    pub latest: *mut libc::c_void,
    pub name: *mut libc::c_char,
    pub name_event: event,
    pub name_time: timeval,
    pub alerts_timer: event,
    pub offset_timer: event,
    pub activity_time: timeval,
    pub active: *mut window_pane,
    pub last_panes: window_panes,
    pub panes: window_panes,
    pub lastlayout: libc::c_int,
    pub layout_root: *mut layout_cell,
    pub saved_layout_root: *mut layout_cell,
    pub old_layout: *mut libc::c_char,
    pub sx: u_int,
    pub sy: u_int,
    pub manual_sx: u_int,
    pub manual_sy: u_int,
    pub xpixel: u_int,
    pub ypixel: u_int,
    pub new_sx: u_int,
    pub new_sy: u_int,
    pub new_xpixel: u_int,
    pub new_ypixel: u_int,
    pub fill_character: *mut utf8_data,
    pub flags: libc::c_int,
    pub alerts_queued: libc::c_int,
    pub alerts_entry: C2RustUnnamed_20,
    pub options: *mut options,
    pub references: u_int,
    pub winlinks: C2RustUnnamed_19,
    pub entry: C2RustUnnamed_18,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct C2RustUnnamed_18 {
    pub rbe_left: *mut window,
    pub rbe_right: *mut window,
    pub rbe_parent: *mut window,
    pub rbe_color: libc::c_int,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct C2RustUnnamed_19 {
    pub tqh_first: *mut winlink,
    pub tqh_last: *mut *mut winlink,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct C2RustUnnamed_20 {
    pub tqe_next: *mut window,
    pub tqe_prev: *mut *mut window,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct layout_cell {
    pub type_0: layout_type,
    pub parent: *mut layout_cell,
    pub sx: u_int,
    pub sy: u_int,
    pub xoff: u_int,
    pub yoff: u_int,
    pub wp: *mut window_pane,
    pub cells: layout_cells,
    pub entry: C2RustUnnamed_21,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct C2RustUnnamed_21 {
    pub tqe_next: *mut layout_cell,
    pub tqe_prev: *mut *mut layout_cell,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct layout_cells {
    pub tqh_first: *mut layout_cell,
    pub tqh_last: *mut *mut layout_cell,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct window_pane {
    pub id: u_int,
    pub active_point: u_int,
    pub window: *mut window,
    pub options: *mut options,
    pub layout_cell: *mut layout_cell,
    pub saved_layout_cell: *mut layout_cell,
    pub sx: u_int,
    pub sy: u_int,
    pub xoff: u_int,
    pub yoff: u_int,
    pub flags: libc::c_int,
    pub sb_slider_y: u_int,
    pub sb_slider_h: u_int,
    pub argc: libc::c_int,
    pub argv: *mut *mut libc::c_char,
    pub shell: *mut libc::c_char,
    pub cwd: *mut libc::c_char,
    pub pid: pid_t,
    pub tty: [libc::c_char; 32],
    pub status: libc::c_int,
    pub dead_time: timeval,
    pub fd: libc::c_int,
    pub event: *mut bufferevent,
    pub offset: window_pane_offset,
    pub base_offset: size_t,
    pub resize_queue: window_pane_resizes,
    pub resize_timer: event,
    pub ictx: *mut input_ctx,
    pub cached_gc: grid_cell,
    pub cached_active_gc: grid_cell,
    pub palette: colour_palette,
    pub pipe_fd: libc::c_int,
    pub pipe_event: *mut bufferevent,
    pub pipe_offset: window_pane_offset,
    pub screen: *mut screen,
    pub base: screen,
    pub status_screen: screen,
    pub status_size: size_t,
    pub modes: C2RustUnnamed_25,
    pub searchstr: *mut libc::c_char,
    pub searchregex: libc::c_int,
    pub border_gc_set: libc::c_int,
    pub border_gc: grid_cell,
    pub control_bg: libc::c_int,
    pub control_fg: libc::c_int,
    pub scrollbar_style: style,
    pub entry: C2RustUnnamed_24,
    pub sentry: C2RustUnnamed_23,
    pub tree_entry: C2RustUnnamed_22,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct C2RustUnnamed_22 {
    pub rbe_left: *mut window_pane,
    pub rbe_right: *mut window_pane,
    pub rbe_parent: *mut window_pane,
    pub rbe_color: libc::c_int,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct C2RustUnnamed_23 {
    pub tqe_next: *mut window_pane,
    pub tqe_prev: *mut *mut window_pane,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct C2RustUnnamed_24 {
    pub tqe_next: *mut window_pane,
    pub tqe_prev: *mut *mut window_pane,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct style {
    pub gc: grid_cell,
    pub ignore: libc::c_int,
    pub fill: libc::c_int,
    pub align: style_align,
    pub list: style_list,
    pub range_type: style_range_type,
    pub range_argument: u_int,
    pub range_string: [libc::c_char; 16],
    pub width: libc::c_int,
    pub pad: libc::c_int,
    pub default_type: style_default_type,
}
pub type style_default_type = libc::c_uint;
pub const STYLE_DEFAULT_POP: style_default_type = 2;
pub const STYLE_DEFAULT_PUSH: style_default_type = 1;
pub const STYLE_DEFAULT_BASE: style_default_type = 0;
pub type style_range_type = libc::c_uint;
pub const STYLE_RANGE_USER: style_range_type = 6;
pub const STYLE_RANGE_SESSION: style_range_type = 5;
pub const STYLE_RANGE_WINDOW: style_range_type = 4;
pub const STYLE_RANGE_PANE: style_range_type = 3;
pub const STYLE_RANGE_RIGHT: style_range_type = 2;
pub const STYLE_RANGE_LEFT: style_range_type = 1;
pub const STYLE_RANGE_NONE: style_range_type = 0;
pub type style_list = libc::c_uint;
pub const STYLE_LIST_RIGHT_MARKER: style_list = 4;
pub const STYLE_LIST_LEFT_MARKER: style_list = 3;
pub const STYLE_LIST_FOCUS: style_list = 2;
pub const STYLE_LIST_ON: style_list = 1;
pub const STYLE_LIST_OFF: style_list = 0;
pub type style_align = libc::c_uint;
pub const STYLE_ALIGN_ABSOLUTE_CENTRE: style_align = 4;
pub const STYLE_ALIGN_RIGHT: style_align = 3;
pub const STYLE_ALIGN_CENTRE: style_align = 2;
pub const STYLE_ALIGN_LEFT: style_align = 1;
pub const STYLE_ALIGN_DEFAULT: style_align = 0;
#[derive(Copy, Clone)]
#[repr(C)]
pub struct C2RustUnnamed_25 {
    pub tqh_first: *mut window_mode_entry,
    pub tqh_last: *mut *mut window_mode_entry,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct window_mode_entry {
    pub wp: *mut window_pane,
    pub swp: *mut window_pane,
    pub mode: *const window_mode,
    pub data: *mut libc::c_void,
    pub screen: *mut screen,
    pub prefix: u_int,
    pub entry: C2RustUnnamed_26,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct C2RustUnnamed_26 {
    pub tqe_next: *mut window_mode_entry,
    pub tqe_prev: *mut *mut window_mode_entry,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct window_mode {
    pub name: *const libc::c_char,
    pub default_format: *const libc::c_char,
    pub init: Option<
        unsafe extern "C" fn(*mut window_mode_entry, *mut cmd_find_state, *mut args) -> *mut screen,
    >,
    pub free: Option<unsafe extern "C" fn(*mut window_mode_entry) -> ()>,
    pub resize: Option<unsafe extern "C" fn(*mut window_mode_entry, u_int, u_int) -> ()>,
    pub update: Option<unsafe extern "C" fn(*mut window_mode_entry) -> ()>,
    pub key: Option<
        unsafe extern "C" fn(
            *mut window_mode_entry,
            *mut client,
            *mut session,
            *mut winlink,
            key_code,
            *mut mouse_event,
        ) -> (),
    >,
    pub key_table: Option<unsafe extern "C" fn(*mut window_mode_entry) -> *const libc::c_char>,
    pub command: Option<
        unsafe extern "C" fn(
            *mut window_mode_entry,
            *mut client,
            *mut session,
            *mut winlink,
            *mut args,
            *mut mouse_event,
        ) -> (),
    >,
    pub formats: Option<unsafe extern "C" fn(*mut window_mode_entry, *mut format_tree) -> ()>,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct cmd_find_state {
    pub flags: libc::c_int,
    pub current: *mut cmd_find_state,
    pub s: *mut session,
    pub wl: *mut winlink,
    pub w: *mut window,
    pub wp: *mut window_pane,
    pub idx: libc::c_int,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct window_pane_offset {
    pub used: size_t,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct colour_palette {
    pub fg: libc::c_int,
    pub bg: libc::c_int,
    pub palette: *mut libc::c_int,
    pub default_palette: *mut libc::c_int,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct window_pane_resizes {
    pub tqh_first: *mut window_pane_resize,
    pub tqh_last: *mut *mut window_pane_resize,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct window_pane_resize {
    pub sx: u_int,
    pub sy: u_int,
    pub osx: u_int,
    pub osy: u_int,
    pub entry: C2RustUnnamed_27,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct C2RustUnnamed_27 {
    pub tqe_next: *mut window_pane_resize,
    pub tqe_prev: *mut *mut window_pane_resize,
}
pub type layout_type = libc::c_uint;
pub const LAYOUT_WINDOWPANE: layout_type = 2;
pub const LAYOUT_TOPBOTTOM: layout_type = 1;
pub const LAYOUT_LEFTRIGHT: layout_type = 0;
#[derive(Copy, Clone)]
#[repr(C)]
pub struct window_panes {
    pub tqh_first: *mut window_pane,
    pub tqh_last: *mut *mut window_pane,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct winlink_stack {
    pub tqh_first: *mut winlink,
    pub tqh_last: *mut *mut winlink,
}
pub type prompt_type = libc::c_uint;
pub const PROMPT_TYPE_INVALID: prompt_type = 255;
pub const PROMPT_TYPE_WINDOW_TARGET: prompt_type = 3;
pub const PROMPT_TYPE_TARGET: prompt_type = 2;
pub const PROMPT_TYPE_SEARCH: prompt_type = 1;
pub const PROMPT_TYPE_COMMAND: prompt_type = 0;
pub type C2RustUnnamed_28 = libc::c_uint;
pub const PROMPT_COMMAND: C2RustUnnamed_28 = 1;
pub const PROMPT_ENTRY: C2RustUnnamed_28 = 0;
pub type prompt_free_cb = Option<unsafe extern "C" fn(*mut libc::c_void) -> ()>;
pub type prompt_input_cb = Option<
    unsafe extern "C" fn(
        *mut client,
        *mut libc::c_void,
        *const libc::c_char,
        libc::c_int,
    ) -> libc::c_int,
>;
#[derive(Copy, Clone)]
#[repr(C)]
pub struct key_table {
    pub name: *const libc::c_char,
    pub activity_time: timeval,
    pub key_bindings: key_bindings,
    pub default_key_bindings: key_bindings,
    pub references: u_int,
    pub entry: C2RustUnnamed_29,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct C2RustUnnamed_29 {
    pub rbe_left: *mut key_table,
    pub rbe_right: *mut key_table,
    pub rbe_parent: *mut key_table,
    pub rbe_color: libc::c_int,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct key_bindings {
    pub rbh_root: *mut key_binding,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct key_binding {
    pub key: key_code,
    pub cmdlist: *mut cmd_list,
    pub note: *const libc::c_char,
    pub flags: libc::c_int,
    pub entry: C2RustUnnamed_30,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct C2RustUnnamed_30 {
    pub rbe_left: *mut key_binding,
    pub rbe_right: *mut key_binding,
    pub rbe_parent: *mut key_binding,
    pub rbe_color: libc::c_int,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct cmd_list {
    pub references: libc::c_int,
    pub group: u_int,
    pub list: *mut cmds,
}
pub type C2RustUnnamed_31 = libc::c_uint;
pub const CLIENT_EXIT_DETACH: C2RustUnnamed_31 = 2;
pub const CLIENT_EXIT_SHUTDOWN: C2RustUnnamed_31 = 1;
pub const CLIENT_EXIT_RETURN: C2RustUnnamed_31 = 0;
#[derive(Copy, Clone)]
#[repr(C)]
pub struct status_line {
    pub timer: event,
    pub screen: screen,
    pub active: *mut screen,
    pub references: libc::c_int,
    pub style: grid_cell,
    pub entries: [status_line_entry; 5],
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct status_line_entry {
    pub expanded: *mut libc::c_char,
    pub ranges: style_ranges,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct style_ranges {
    pub tqh_first: *mut style_range,
    pub tqh_last: *mut *mut style_range,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct style_range {
    pub type_0: style_range_type,
    pub argument: u_int,
    pub string: [libc::c_char; 16],
    pub start: u_int,
    pub end: u_int,
    pub entry: C2RustUnnamed_32,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct C2RustUnnamed_32 {
    pub tqe_next: *mut style_range,
    pub tqe_prev: *mut *mut style_range,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct tty {
    pub client: *mut client,
    pub start_timer: event,
    pub clipboard_timer: event,
    pub last_requests: time_t,
    pub sx: u_int,
    pub sy: u_int,
    pub xpixel: u_int,
    pub ypixel: u_int,
    pub cx: u_int,
    pub cy: u_int,
    pub cstyle: screen_cursor_style,
    pub ccolour: libc::c_int,
    pub oflag: libc::c_int,
    pub oox: u_int,
    pub ooy: u_int,
    pub osx: u_int,
    pub osy: u_int,
    pub mode: libc::c_int,
    pub fg: libc::c_int,
    pub bg: libc::c_int,
    pub rlower: u_int,
    pub rupper: u_int,
    pub rleft: u_int,
    pub rright: u_int,
    pub event_in: event,
    pub in_0: *mut evbuffer,
    pub event_out: event,
    pub out: *mut evbuffer,
    pub timer: event,
    pub discarded: size_t,
    pub tio: termios,
    pub cell: grid_cell,
    pub last_cell: grid_cell,
    pub flags: libc::c_int,
    pub term: *mut tty_term,
    pub mouse_last_x: u_int,
    pub mouse_last_y: u_int,
    pub mouse_last_b: u_int,
    pub mouse_drag_flag: libc::c_int,
    pub mouse_scrolling_flag: libc::c_int,
    pub mouse_slider_mpos: libc::c_int,
    pub mouse_drag_update: Option<unsafe extern "C" fn(*mut client, *mut mouse_event) -> ()>,
    pub mouse_drag_release: Option<unsafe extern "C" fn(*mut client, *mut mouse_event) -> ()>,
    pub key_timer: event,
    pub key_tree: *mut tty_key,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct tty_term {
    pub name: *mut libc::c_char,
    pub tty: *mut tty,
    pub features: libc::c_int,
    pub acs: [[libc::c_char; 2]; 256],
    pub codes: *mut tty_code,
    pub flags: libc::c_int,
    pub entry: C2RustUnnamed_33,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct C2RustUnnamed_33 {
    pub le_next: *mut tty_term,
    pub le_prev: *mut *mut tty_term,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct client_windows {
    pub rbh_root: *mut client_window,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct client_window {
    pub window: u_int,
    pub pane: *mut window_pane,
    pub sx: u_int,
    pub sy: u_int,
    pub entry: C2RustUnnamed_34,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct C2RustUnnamed_34 {
    pub rbe_left: *mut client_window,
    pub rbe_right: *mut client_window,
    pub rbe_parent: *mut client_window,
    pub rbe_color: libc::c_int,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub struct options_array {
    pub rbh_root: *mut options_array_item,
}
#[derive(Copy, Clone)]
#[repr(C)]
pub union options_value {
    pub string: *mut libc::c_char,
    pub number: libc::c_longlong,
    pub style: style,
    pub array: options_array,
    pub cmdlist: *mut cmd_list,
}
unsafe extern "C" fn environ_RB_REMOVE_COLOR(
    mut head: *mut environ,
    mut parent: *mut environ_entry,
    mut elm: *mut environ_entry,
) {
    let mut tmp: *mut environ_entry = std::ptr::null_mut::<environ_entry>();
    while (elm.is_null() || (*elm).entry.rbe_color == 0 as libc::c_int) && elm != (*head).rbh_root {
        if (*parent).entry.rbe_left == elm {
            tmp = (*parent).entry.rbe_right;
            if (*tmp).entry.rbe_color == 1 as libc::c_int {
                (*tmp).entry.rbe_color = 0 as libc::c_int;
                (*parent).entry.rbe_color = 1 as libc::c_int;
                tmp = (*parent).entry.rbe_right;
                (*parent).entry.rbe_right = (*tmp).entry.rbe_left;
                if !((*parent).entry.rbe_right).is_null() {
                    (*(*tmp).entry.rbe_left).entry.rbe_parent = parent;
                }
                (*tmp).entry.rbe_parent = (*parent).entry.rbe_parent;
                if !((*tmp).entry.rbe_parent).is_null() {
                    if parent == (*(*parent).entry.rbe_parent).entry.rbe_left {
                        (*(*parent).entry.rbe_parent).entry.rbe_left = tmp;
                    } else {
                        (*(*parent).entry.rbe_parent).entry.rbe_right = tmp;
                    }
                } else {
                    (*head).rbh_root = tmp;
                }
                (*tmp).entry.rbe_left = parent;
                (*parent).entry.rbe_parent = tmp;
                !((*tmp).entry.rbe_parent).is_null();
                tmp = (*parent).entry.rbe_right;
            }
            if (((*tmp).entry.rbe_left).is_null()
                || (*(*tmp).entry.rbe_left).entry.rbe_color == 0 as libc::c_int)
                && (((*tmp).entry.rbe_right).is_null()
                    || (*(*tmp).entry.rbe_right).entry.rbe_color == 0 as libc::c_int)
            {
                (*tmp).entry.rbe_color = 1 as libc::c_int;
                elm = parent;
                parent = (*elm).entry.rbe_parent;
            } else {
                if ((*tmp).entry.rbe_right).is_null()
                    || (*(*tmp).entry.rbe_right).entry.rbe_color == 0 as libc::c_int
                {
                    let mut oleft: *mut environ_entry = std::ptr::null_mut::<environ_entry>();
                    oleft = (*tmp).entry.rbe_left;
                    if !oleft.is_null() {
                        (*oleft).entry.rbe_color = 0 as libc::c_int;
                    }
                    (*tmp).entry.rbe_color = 1 as libc::c_int;
                    oleft = (*tmp).entry.rbe_left;
                    (*tmp).entry.rbe_left = (*oleft).entry.rbe_right;
                    if !((*tmp).entry.rbe_left).is_null() {
                        (*(*oleft).entry.rbe_right).entry.rbe_parent = tmp;
                    }
                    (*oleft).entry.rbe_parent = (*tmp).entry.rbe_parent;
                    if !((*oleft).entry.rbe_parent).is_null() {
                        if tmp == (*(*tmp).entry.rbe_parent).entry.rbe_left {
                            (*(*tmp).entry.rbe_parent).entry.rbe_left = oleft;
                        } else {
                            (*(*tmp).entry.rbe_parent).entry.rbe_right = oleft;
                        }
                    } else {
                        (*head).rbh_root = oleft;
                    }
                    (*oleft).entry.rbe_right = tmp;
                    (*tmp).entry.rbe_parent = oleft;
                    !((*oleft).entry.rbe_parent).is_null();
                    tmp = (*parent).entry.rbe_right;
                }
                (*tmp).entry.rbe_color = (*parent).entry.rbe_color;
                (*parent).entry.rbe_color = 0 as libc::c_int;
                if !((*tmp).entry.rbe_right).is_null() {
                    (*(*tmp).entry.rbe_right).entry.rbe_color = 0 as libc::c_int;
                }
                tmp = (*parent).entry.rbe_right;
                (*parent).entry.rbe_right = (*tmp).entry.rbe_left;
                if !((*parent).entry.rbe_right).is_null() {
                    (*(*tmp).entry.rbe_left).entry.rbe_parent = parent;
                }
                (*tmp).entry.rbe_parent = (*parent).entry.rbe_parent;
                if !((*tmp).entry.rbe_parent).is_null() {
                    if parent == (*(*parent).entry.rbe_parent).entry.rbe_left {
                        (*(*parent).entry.rbe_parent).entry.rbe_left = tmp;
                    } else {
                        (*(*parent).entry.rbe_parent).entry.rbe_right = tmp;
                    }
                } else {
                    (*head).rbh_root = tmp;
                }
                (*tmp).entry.rbe_left = parent;
                (*parent).entry.rbe_parent = tmp;
                !((*tmp).entry.rbe_parent).is_null();
                elm = (*head).rbh_root;
                break;
            }
        } else {
            tmp = (*parent).entry.rbe_left;
            if (*tmp).entry.rbe_color == 1 as libc::c_int {
                (*tmp).entry.rbe_color = 0 as libc::c_int;
                (*parent).entry.rbe_color = 1 as libc::c_int;
                tmp = (*parent).entry.rbe_left;
                (*parent).entry.rbe_left = (*tmp).entry.rbe_right;
                if !((*parent).entry.rbe_left).is_null() {
                    (*(*tmp).entry.rbe_right).entry.rbe_parent = parent;
                }
                (*tmp).entry.rbe_parent = (*parent).entry.rbe_parent;
                if !((*tmp).entry.rbe_parent).is_null() {
                    if parent == (*(*parent).entry.rbe_parent).entry.rbe_left {
                        (*(*parent).entry.rbe_parent).entry.rbe_left = tmp;
                    } else {
                        (*(*parent).entry.rbe_parent).entry.rbe_right = tmp;
                    }
                } else {
                    (*head).rbh_root = tmp;
                }
                (*tmp).entry.rbe_right = parent;
                (*parent).entry.rbe_parent = tmp;
                !((*tmp).entry.rbe_parent).is_null();
                tmp = (*parent).entry.rbe_left;
            }
            if (((*tmp).entry.rbe_left).is_null()
                || (*(*tmp).entry.rbe_left).entry.rbe_color == 0 as libc::c_int)
                && (((*tmp).entry.rbe_right).is_null()
                    || (*(*tmp).entry.rbe_right).entry.rbe_color == 0 as libc::c_int)
            {
                (*tmp).entry.rbe_color = 1 as libc::c_int;
                elm = parent;
                parent = (*elm).entry.rbe_parent;
            } else {
                if ((*tmp).entry.rbe_left).is_null()
                    || (*(*tmp).entry.rbe_left).entry.rbe_color == 0 as libc::c_int
                {
                    let mut oright: *mut environ_entry = std::ptr::null_mut::<environ_entry>();
                    oright = (*tmp).entry.rbe_right;
                    if !oright.is_null() {
                        (*oright).entry.rbe_color = 0 as libc::c_int;
                    }
                    (*tmp).entry.rbe_color = 1 as libc::c_int;
                    oright = (*tmp).entry.rbe_right;
                    (*tmp).entry.rbe_right = (*oright).entry.rbe_left;
                    if !((*tmp).entry.rbe_right).is_null() {
                        (*(*oright).entry.rbe_left).entry.rbe_parent = tmp;
                    }
                    (*oright).entry.rbe_parent = (*tmp).entry.rbe_parent;
                    if !((*oright).entry.rbe_parent).is_null() {
                        if tmp == (*(*tmp).entry.rbe_parent).entry.rbe_left {
                            (*(*tmp).entry.rbe_parent).entry.rbe_left = oright;
                        } else {
                            (*(*tmp).entry.rbe_parent).entry.rbe_right = oright;
                        }
                    } else {
                        (*head).rbh_root = oright;
                    }
                    (*oright).entry.rbe_left = tmp;
                    (*tmp).entry.rbe_parent = oright;
                    !((*oright).entry.rbe_parent).is_null();
                    tmp = (*parent).entry.rbe_left;
                }
                (*tmp).entry.rbe_color = (*parent).entry.rbe_color;
                (*parent).entry.rbe_color = 0 as libc::c_int;
                if !((*tmp).entry.rbe_left).is_null() {
                    (*(*tmp).entry.rbe_left).entry.rbe_color = 0 as libc::c_int;
                }
                tmp = (*parent).entry.rbe_left;
                (*parent).entry.rbe_left = (*tmp).entry.rbe_right;
                if !((*parent).entry.rbe_left).is_null() {
                    (*(*tmp).entry.rbe_right).entry.rbe_parent = parent;
                }
                (*tmp).entry.rbe_parent = (*parent).entry.rbe_parent;
                if !((*tmp).entry.rbe_parent).is_null() {
                    if parent == (*(*parent).entry.rbe_parent).entry.rbe_left {
                        (*(*parent).entry.rbe_parent).entry.rbe_left = tmp;
                    } else {
                        (*(*parent).entry.rbe_parent).entry.rbe_right = tmp;
                    }
                } else {
                    (*head).rbh_root = tmp;
                }
                (*tmp).entry.rbe_right = parent;
                (*parent).entry.rbe_parent = tmp;
                !((*tmp).entry.rbe_parent).is_null();
                elm = (*head).rbh_root;
                break;
            }
        }
    }
    if !elm.is_null() {
        (*elm).entry.rbe_color = 0 as libc::c_int;
    }
}
unsafe extern "C" fn environ_RB_MINMAX(
    mut head: *mut environ,
    mut val: libc::c_int,
) -> *mut environ_entry {
    let mut tmp: *mut environ_entry = (*head).rbh_root;
    let mut parent: *mut environ_entry = std::ptr::null_mut::<environ_entry>();
    while !tmp.is_null() {
        parent = tmp;
        if val < 0 as libc::c_int {
            tmp = (*tmp).entry.rbe_left;
        } else {
            tmp = (*tmp).entry.rbe_right;
        }
    }
    return parent;
}
unsafe extern "C" fn environ_RB_NEXT(mut elm: *mut environ_entry) -> *mut environ_entry {
    if !((*elm).entry.rbe_right).is_null() {
        elm = (*elm).entry.rbe_right;
        while !((*elm).entry.rbe_left).is_null() {
            elm = (*elm).entry.rbe_left;
        }
    } else if !((*elm).entry.rbe_parent).is_null()
        && elm == (*(*elm).entry.rbe_parent).entry.rbe_left
    {
        elm = (*elm).entry.rbe_parent;
    } else {
        while !((*elm).entry.rbe_parent).is_null()
            && elm == (*(*elm).entry.rbe_parent).entry.rbe_right
        {
            elm = (*elm).entry.rbe_parent;
        }
        elm = (*elm).entry.rbe_parent;
    }
    return elm;
}
unsafe extern "C" fn environ_RB_REMOVE(
    mut head: *mut environ,
    mut elm: *mut environ_entry,
) -> *mut environ_entry {
    let mut current_block: u64;
    let mut child: *mut environ_entry = std::ptr::null_mut::<environ_entry>();
    let mut parent: *mut environ_entry = std::ptr::null_mut::<environ_entry>();
    let mut old: *mut environ_entry = elm;
    let mut color: libc::c_int = 0;
    if ((*elm).entry.rbe_left).is_null() {
        child = (*elm).entry.rbe_right;
        current_block = 7245201122033322888;
    } else if ((*elm).entry.rbe_right).is_null() {
        child = (*elm).entry.rbe_left;
        current_block = 7245201122033322888;
    } else {
        let mut left: *mut environ_entry = std::ptr::null_mut::<environ_entry>();
        elm = (*elm).entry.rbe_right;
        loop {
            left = (*elm).entry.rbe_left;
            if left.is_null() {
                break;
            }
            elm = left;
        }
        child = (*elm).entry.rbe_right;
        parent = (*elm).entry.rbe_parent;
        color = (*elm).entry.rbe_color;
        if !child.is_null() {
            (*child).entry.rbe_parent = parent;
        }
        if !parent.is_null() {
            if (*parent).entry.rbe_left == elm {
                (*parent).entry.rbe_left = child;
            } else {
                (*parent).entry.rbe_right = child;
            }
        } else {
            (*head).rbh_root = child;
        }
        if (*elm).entry.rbe_parent == old {
            parent = elm;
        }
        (*elm).entry = (*old).entry;
        if !((*old).entry.rbe_parent).is_null() {
            if (*(*old).entry.rbe_parent).entry.rbe_left == old {
                (*(*old).entry.rbe_parent).entry.rbe_left = elm;
            } else {
                (*(*old).entry.rbe_parent).entry.rbe_right = elm;
            }
        } else {
            (*head).rbh_root = elm;
        }
        (*(*old).entry.rbe_left).entry.rbe_parent = elm;
        if !((*old).entry.rbe_right).is_null() {
            (*(*old).entry.rbe_right).entry.rbe_parent = elm;
        }
        if !parent.is_null() {
            left = parent;
            loop {
                left = (*left).entry.rbe_parent;
                if left.is_null() {
                    break;
                }
            }
        }
        current_block = 1130445752470286030;
    }
    match current_block {
        7245201122033322888 => {
            parent = (*elm).entry.rbe_parent;
            color = (*elm).entry.rbe_color;
            if !child.is_null() {
                (*child).entry.rbe_parent = parent;
            }
            if !parent.is_null() {
                if (*parent).entry.rbe_left == elm {
                    (*parent).entry.rbe_left = child;
                } else {
                    (*parent).entry.rbe_right = child;
                }
            } else {
                (*head).rbh_root = child;
            }
        }
        _ => {}
    }
    if color == 0 as libc::c_int {
        environ_RB_REMOVE_COLOR(head, parent, child);
    }
    return old;
}
unsafe extern "C" fn environ_RB_FIND(
    mut head: *mut environ,
    mut elm: *mut environ_entry,
) -> *mut environ_entry {
    let mut tmp: *mut environ_entry = (*head).rbh_root;
    let mut comp: libc::c_int = 0;
    while !tmp.is_null() {
        comp = environ_cmp(elm, tmp);
        if comp < 0 as libc::c_int {
            tmp = (*tmp).entry.rbe_left;
        } else if comp > 0 as libc::c_int {
            tmp = (*tmp).entry.rbe_right;
        } else {
            return tmp;
        }
    }
    return std::ptr::null_mut::<environ_entry>();
}
unsafe extern "C" fn environ_RB_INSERT_COLOR(mut head: *mut environ, mut elm: *mut environ_entry) {
    let mut parent: *mut environ_entry = std::ptr::null_mut::<environ_entry>();
    let mut gparent: *mut environ_entry = std::ptr::null_mut::<environ_entry>();
    let mut tmp: *mut environ_entry = std::ptr::null_mut::<environ_entry>();
    loop {
        parent = (*elm).entry.rbe_parent;
        if parent.is_null() || (*parent).entry.rbe_color != 1 as libc::c_int {
            break;
        }
        gparent = (*parent).entry.rbe_parent;
        if parent == (*gparent).entry.rbe_left {
            tmp = (*gparent).entry.rbe_right;
            if !tmp.is_null() && (*tmp).entry.rbe_color == 1 as libc::c_int {
                (*tmp).entry.rbe_color = 0 as libc::c_int;
                (*parent).entry.rbe_color = 0 as libc::c_int;
                (*gparent).entry.rbe_color = 1 as libc::c_int;
                elm = gparent;
            } else {
                if (*parent).entry.rbe_right == elm {
                    tmp = (*parent).entry.rbe_right;
                    (*parent).entry.rbe_right = (*tmp).entry.rbe_left;
                    if !((*parent).entry.rbe_right).is_null() {
                        (*(*tmp).entry.rbe_left).entry.rbe_parent = parent;
                    }
                    (*tmp).entry.rbe_parent = (*parent).entry.rbe_parent;
                    if !((*tmp).entry.rbe_parent).is_null() {
                        if parent == (*(*parent).entry.rbe_parent).entry.rbe_left {
                            (*(*parent).entry.rbe_parent).entry.rbe_left = tmp;
                        } else {
                            (*(*parent).entry.rbe_parent).entry.rbe_right = tmp;
                        }
                    } else {
                        (*head).rbh_root = tmp;
                    }
                    (*tmp).entry.rbe_left = parent;
                    (*parent).entry.rbe_parent = tmp;
                    !((*tmp).entry.rbe_parent).is_null();
                    tmp = parent;
                    parent = elm;
                    elm = tmp;
                }
                (*parent).entry.rbe_color = 0 as libc::c_int;
                (*gparent).entry.rbe_color = 1 as libc::c_int;
                tmp = (*gparent).entry.rbe_left;
                (*gparent).entry.rbe_left = (*tmp).entry.rbe_right;
                if !((*gparent).entry.rbe_left).is_null() {
                    (*(*tmp).entry.rbe_right).entry.rbe_parent = gparent;
                }
                (*tmp).entry.rbe_parent = (*gparent).entry.rbe_parent;
                if !((*tmp).entry.rbe_parent).is_null() {
                    if gparent == (*(*gparent).entry.rbe_parent).entry.rbe_left {
                        (*(*gparent).entry.rbe_parent).entry.rbe_left = tmp;
                    } else {
                        (*(*gparent).entry.rbe_parent).entry.rbe_right = tmp;
                    }
                } else {
                    (*head).rbh_root = tmp;
                }
                (*tmp).entry.rbe_right = gparent;
                (*gparent).entry.rbe_parent = tmp;
                !((*tmp).entry.rbe_parent).is_null();
            }
        } else {
            tmp = (*gparent).entry.rbe_left;
            if !tmp.is_null() && (*tmp).entry.rbe_color == 1 as libc::c_int {
                (*tmp).entry.rbe_color = 0 as libc::c_int;
                (*parent).entry.rbe_color = 0 as libc::c_int;
                (*gparent).entry.rbe_color = 1 as libc::c_int;
                elm = gparent;
            } else {
                if (*parent).entry.rbe_left == elm {
                    tmp = (*parent).entry.rbe_left;
                    (*parent).entry.rbe_left = (*tmp).entry.rbe_right;
                    if !((*parent).entry.rbe_left).is_null() {
                        (*(*tmp).entry.rbe_right).entry.rbe_parent = parent;
                    }
                    (*tmp).entry.rbe_parent = (*parent).entry.rbe_parent;
                    if !((*tmp).entry.rbe_parent).is_null() {
                        if parent == (*(*parent).entry.rbe_parent).entry.rbe_left {
                            (*(*parent).entry.rbe_parent).entry.rbe_left = tmp;
                        } else {
                            (*(*parent).entry.rbe_parent).entry.rbe_right = tmp;
                        }
                    } else {
                        (*head).rbh_root = tmp;
                    }
                    (*tmp).entry.rbe_right = parent;
                    (*parent).entry.rbe_parent = tmp;
                    !((*tmp).entry.rbe_parent).is_null();
                    tmp = parent;
                    parent = elm;
                    elm = tmp;
                }
                (*parent).entry.rbe_color = 0 as libc::c_int;
                (*gparent).entry.rbe_color = 1 as libc::c_int;
                tmp = (*gparent).entry.rbe_right;
                (*gparent).entry.rbe_right = (*tmp).entry.rbe_left;
                if !((*gparent).entry.rbe_right).is_null() {
                    (*(*tmp).entry.rbe_left).entry.rbe_parent = gparent;
                }
                (*tmp).entry.rbe_parent = (*gparent).entry.rbe_parent;
                if !((*tmp).entry.rbe_parent).is_null() {
                    if gparent == (*(*gparent).entry.rbe_parent).entry.rbe_left {
                        (*(*gparent).entry.rbe_parent).entry.rbe_left = tmp;
                    } else {
                        (*(*gparent).entry.rbe_parent).entry.rbe_right = tmp;
                    }
                } else {
                    (*head).rbh_root = tmp;
                }
                (*tmp).entry.rbe_left = gparent;
                (*gparent).entry.rbe_parent = tmp;
                !((*tmp).entry.rbe_parent).is_null();
            }
        }
    }
    (*(*head).rbh_root).entry.rbe_color = 0 as libc::c_int;
}
unsafe extern "C" fn environ_RB_INSERT(
    mut head: *mut environ,
    mut elm: *mut environ_entry,
) -> *mut environ_entry {
    let mut tmp: *mut environ_entry = std::ptr::null_mut::<environ_entry>();
    let mut parent: *mut environ_entry = std::ptr::null_mut::<environ_entry>();
    let mut comp: libc::c_int = 0 as libc::c_int;
    tmp = (*head).rbh_root;
    while !tmp.is_null() {
        parent = tmp;
        comp = environ_cmp(elm, parent);
        if comp < 0 as libc::c_int {
            tmp = (*tmp).entry.rbe_left;
        } else if comp > 0 as libc::c_int {
            tmp = (*tmp).entry.rbe_right;
        } else {
            return tmp;
        }
    }
    (*elm).entry.rbe_parent = parent;
    (*elm).entry.rbe_right = std::ptr::null_mut::<environ_entry>();
    (*elm).entry.rbe_left = (*elm).entry.rbe_right;
    (*elm).entry.rbe_color = 1 as libc::c_int;
    if !parent.is_null() {
        if comp < 0 as libc::c_int {
            (*parent).entry.rbe_left = elm;
        } else {
            (*parent).entry.rbe_right = elm;
        }
    } else {
        (*head).rbh_root = elm;
    }
    environ_RB_INSERT_COLOR(head, elm);
    return std::ptr::null_mut::<environ_entry>();
}
unsafe extern "C" fn environ_cmp(
    mut envent1: *mut environ_entry,
    mut envent2: *mut environ_entry,
) -> libc::c_int {
    return strcmp((*envent1).name, (*envent2).name);
}
#[no_mangle]
pub unsafe extern "C" fn environ_create() -> *mut environ {
    let mut env: *mut environ = std::ptr::null_mut::<environ>();
    env = xcalloc(
        1 as libc::c_int as size_t,
        ::core::mem::size_of::<environ>() as libc::c_ulong,
    ) as *mut environ;
    (*env).rbh_root = std::ptr::null_mut::<environ_entry>();
    return env;
}
#[no_mangle]
pub unsafe extern "C" fn environ_free(mut env: *mut environ) {
    let mut envent: *mut environ_entry = std::ptr::null_mut::<environ_entry>();
    let mut envent1: *mut environ_entry = std::ptr::null_mut::<environ_entry>();
    envent = environ_RB_MINMAX(env, -(1 as libc::c_int));
    while !envent.is_null() && {
        envent1 = environ_RB_NEXT(envent);
        1 as libc::c_int != 0
    } {
        environ_RB_REMOVE(env, envent);
        free((*envent).name as *mut libc::c_void);
        free((*envent).value as *mut libc::c_void);
        free(envent as *mut libc::c_void);
        envent = envent1;
    }
    free(env as *mut libc::c_void);
}
#[no_mangle]
pub unsafe extern "C" fn environ_first(mut env: *mut environ) -> *mut environ_entry {
    return environ_RB_MINMAX(env, -(1 as libc::c_int));
}
#[no_mangle]
pub unsafe extern "C" fn environ_next(mut envent: *mut environ_entry) -> *mut environ_entry {
    return environ_RB_NEXT(envent);
}
#[no_mangle]
pub unsafe extern "C" fn environ_copy(mut srcenv: *mut environ, mut dstenv: *mut environ) {
    let mut envent: *mut environ_entry = std::ptr::null_mut::<environ_entry>();
    envent = environ_RB_MINMAX(srcenv, -(1 as libc::c_int));
    while !envent.is_null() {
        if ((*envent).value).is_null() {
            environ_clear(dstenv, (*envent).name);
        } else {
            environ_set(
                dstenv,
                (*envent).name,
                (*envent).flags,
                b"%s\0" as *const u8 as *const libc::c_char,
                (*envent).value,
            );
        }
        envent = environ_RB_NEXT(envent);
    }
}
#[no_mangle]
pub unsafe extern "C" fn environ_find(
    mut env: *mut environ,
    mut name: *const libc::c_char,
) -> *mut environ_entry {
    let mut envent: environ_entry = environ_entry {
        name: std::ptr::null_mut::<libc::c_char>(),
        value: std::ptr::null_mut::<libc::c_char>(),
        flags: 0,
        entry: C2RustUnnamed_14 {
            rbe_left: std::ptr::null_mut::<environ_entry>(),
            rbe_right: std::ptr::null_mut::<environ_entry>(),
            rbe_parent: std::ptr::null_mut::<environ_entry>(),
            rbe_color: 0,
        },
    };
    envent.name = name as *mut libc::c_char;
    return environ_RB_FIND(env, &mut envent);
}
#[no_mangle]
pub unsafe extern "C" fn environ_set(
    mut env: *mut environ,
    mut name: *const libc::c_char,
    mut flags: libc::c_int,
    mut fmt: *const libc::c_char,
    mut args: ...
) {
    let mut envent: *mut environ_entry = std::ptr::null_mut::<environ_entry>();
    let mut ap: ::core::ffi::VaListImpl;
    ap = args.clone();
    envent = environ_find(env, name);
    if !envent.is_null() {
        (*envent).flags = flags;
        free((*envent).value as *mut libc::c_void);
        xvasprintf(&mut (*envent).value, fmt, ap.as_va_list());
    } else {
        envent =
            xmalloc(::core::mem::size_of::<environ_entry>() as libc::c_ulong) as *mut environ_entry;
        (*envent).name = xstrdup(name);
        (*envent).flags = flags;
        xvasprintf(&mut (*envent).value, fmt, ap.as_va_list());
        environ_RB_INSERT(env, envent);
    };
}
#[no_mangle]
pub unsafe extern "C" fn environ_clear(mut env: *mut environ, mut name: *const libc::c_char) {
    let mut envent: *mut environ_entry = std::ptr::null_mut::<environ_entry>();
    envent = environ_find(env, name);
    if !envent.is_null() {
        free((*envent).value as *mut libc::c_void);
        (*envent).value = std::ptr::null_mut::<libc::c_char>();
    } else {
        envent =
            xmalloc(::core::mem::size_of::<environ_entry>() as libc::c_ulong) as *mut environ_entry;
        (*envent).name = xstrdup(name);
        (*envent).flags = 0 as libc::c_int;
        (*envent).value = std::ptr::null_mut::<libc::c_char>();
        environ_RB_INSERT(env, envent);
    };
}
#[no_mangle]
pub unsafe extern "C" fn environ_put(
    mut env: *mut environ,
    mut var: *const libc::c_char,
    mut flags: libc::c_int,
) {
    let mut name: *mut libc::c_char = std::ptr::null_mut::<libc::c_char>();
    let mut value: *mut libc::c_char = std::ptr::null_mut::<libc::c_char>();
    value = strchr(var, '=' as i32);
    if value.is_null() {
        return;
    }
    value = value.offset(1);
    name = xstrdup(var);
    *name.offset(strcspn(name, b"=\0" as *const u8 as *const libc::c_char) as isize) =
        '\0' as i32 as libc::c_char;
    environ_set(
        env,
        name,
        flags,
        b"%s\0" as *const u8 as *const libc::c_char,
        value,
    );
    free(name as *mut libc::c_void);
}
#[no_mangle]
pub unsafe extern "C" fn environ_unset(mut env: *mut environ, mut name: *const libc::c_char) {
    let mut envent: *mut environ_entry = std::ptr::null_mut::<environ_entry>();
    envent = environ_find(env, name);
    if envent.is_null() {
        return;
    }
    environ_RB_REMOVE(env, envent);
    free((*envent).name as *mut libc::c_void);
    free((*envent).value as *mut libc::c_void);
    free(envent as *mut libc::c_void);
}
#[no_mangle]
pub unsafe extern "C" fn environ_update(
    mut oo: *mut options,
    mut src: *mut environ,
    mut dst: *mut environ,
) {
    let mut envent: *mut environ_entry = std::ptr::null_mut::<environ_entry>();
    let mut envent1: *mut environ_entry = std::ptr::null_mut::<environ_entry>();
    let mut o: *mut options_entry = std::ptr::null_mut::<options_entry>();
    let mut a: *mut options_array_item = std::ptr::null_mut::<options_array_item>();
    let mut ov: *mut options_value = std::ptr::null_mut::<options_value>();
    let mut found: libc::c_int = 0;
    o = options_get(
        oo,
        b"update-environment\0" as *const u8 as *const libc::c_char,
    );
    if o.is_null() {
        return;
    }
    a = options_array_first(o);
    while !a.is_null() {
        ov = options_array_item_value(a);
        found = 0 as libc::c_int;
        envent = environ_RB_MINMAX(src, -(1 as libc::c_int));
        while !envent.is_null() && {
            envent1 = environ_RB_NEXT(envent);
            1 as libc::c_int != 0
        } {
            if fnmatch((*ov).string, (*envent).name, 0 as libc::c_int) == 0 as libc::c_int {
                environ_set(
                    dst,
                    (*envent).name,
                    0 as libc::c_int,
                    b"%s\0" as *const u8 as *const libc::c_char,
                    (*envent).value,
                );
                found = 1 as libc::c_int;
            }
            envent = envent1;
        }
        if found == 0 {
            environ_clear(dst, (*ov).string);
        }
        a = options_array_next(a);
    }
}
#[no_mangle]
pub unsafe extern "C" fn environ_push(mut env: *mut environ) {
    let mut envent: *mut environ_entry = std::ptr::null_mut::<environ_entry>();
    environ = xcalloc(
        1 as libc::c_int as size_t,
        ::core::mem::size_of::<*mut libc::c_char>() as libc::c_ulong,
    ) as *mut *mut libc::c_char;
    envent = environ_RB_MINMAX(env, -(1 as libc::c_int));
    while !envent.is_null() {
        if !((*envent).value).is_null()
            && *(*envent).name as libc::c_int != '\0' as i32
            && !(*envent).flags & 0x1 as libc::c_int != 0
        {
            setenv((*envent).name, (*envent).value, 1 as libc::c_int);
        }
        envent = environ_RB_NEXT(envent);
    }
}
#[no_mangle]
pub unsafe extern "C" fn environ_log(
    mut env: *mut environ,
    mut fmt: *const libc::c_char,
    mut args: ...
) {
    let mut envent: *mut environ_entry = std::ptr::null_mut::<environ_entry>();
    let mut ap: ::core::ffi::VaListImpl;
    let mut prefix: *mut libc::c_char = std::ptr::null_mut::<libc::c_char>();
    ap = args.clone();
    vasprintf(&mut prefix, fmt, ap.as_va_list());
    envent = environ_RB_MINMAX(env, -(1 as libc::c_int));
    while !envent.is_null() {
        if !((*envent).value).is_null() && *(*envent).name as libc::c_int != '\0' as i32 {
            log_debug(
                b"%s%s=%s\0" as *const u8 as *const libc::c_char,
                prefix,
                (*envent).name,
                (*envent).value,
            );
        }
        envent = environ_RB_NEXT(envent);
    }
    free(prefix as *mut libc::c_void);
}
#[no_mangle]
pub unsafe extern "C" fn environ_for_session(
    mut s: *mut session,
    mut no_TERM: libc::c_int,
) -> *mut environ {
    let mut env: *mut environ = std::ptr::null_mut::<environ>();
    let mut value: *const libc::c_char = std::ptr::null::<libc::c_char>();
    let mut idx: libc::c_int = 0;
    env = environ_create();
    environ_copy(global_environ, env);
    if !s.is_null() {
        environ_copy((*s).environ, env);
    }
    if no_TERM == 0 {
        value = options_get_string(
            global_options,
            b"default-terminal\0" as *const u8 as *const libc::c_char,
        );
        environ_set(
            env,
            b"TERM\0" as *const u8 as *const libc::c_char,
            0 as libc::c_int,
            b"%s\0" as *const u8 as *const libc::c_char,
            value,
        );
        environ_set(
            env,
            b"TERM_PROGRAM\0" as *const u8 as *const libc::c_char,
            0 as libc::c_int,
            b"%s\0" as *const u8 as *const libc::c_char,
            b"tmux\0" as *const u8 as *const libc::c_char,
        );
        environ_set(
            env,
            b"TERM_PROGRAM_VERSION\0" as *const u8 as *const libc::c_char,
            0 as libc::c_int,
            b"%s\0" as *const u8 as *const libc::c_char,
            getversion(),
        );
    }
    if !s.is_null() {
        idx = (*s).id as libc::c_int;
    } else {
        idx = -(1 as libc::c_int);
    }
    environ_set(
        env,
        b"TMUX\0" as *const u8 as *const libc::c_char,
        0 as libc::c_int,
        b"%s,%ld,%d\0" as *const u8 as *const libc::c_char,
        socket_path,
        getpid() as libc::c_long,
        idx,
    );
    return env;
}
